Power density breakthrough with new power supplies and loads

17-11-2022 | Elektro-Automatik Limited | Power

EA Elektro-Automatik GmbH and Co.KG has released its 60kW and 30kW, EA-PU 10000 Programmable DC Power Supplies, EA-PUB 10000 Programmable Bidirectional DC Power Supplies and EA-PUL DC Programmable Regenerative Electronic Loads. Typical applications include EV battery pack testing, electrochemical electrolysis processing, powering furnaces in semiconductor wafer fabrication facilities, and solar inverter testing. The new products, without manual front panel displays, are targeted at production ATE systems and automated process control systems needing high power.

The 60kW model offers maximum output voltages of 360V to 2000V and maximum currents of 480A to 80A; the 30kW models output maximum voltages of 60V to 2000V and maximum currents of 1000A to 40A. Overall, the 60kW series includes 21 models, and the 30kW series consists of 29 models enabling engineers to pick a model that meets their specific applications. The increased power capability allows engineers to decrease the number of power instruments required for a high-power system, saving critical rack space and supplies more power in a smaller footprint.

The company offers the highest power density, with 60 kW in one 6U enclosure and 30 kW in a 4U enclosure. Markus Schyboll, CEO of EA Elektro-Automatik, comments: "With the new 60kW and 30kW industrial series instruments, EA Elektro-Automatik provides space-saving, cost-effective solutions with priority on both safety and the lowest cost of ownership. All our models have overcurrent, overvoltage, overpower, and overtemperature protection functions, and our new bidirectional power supplies and regenerative electronic loads have power factors of 0.99 and return up to 96% of absorbed power back to the grid."

Test engineers can parallel up to 64 of the 10000 series power supplies and loads utilising the Master and Auxiliary bus (formerly known as Master-Slave-Bus) to allow one instrument to control all devices in the system, which can be paralleled up to 3.84MW. The system can comprise any combination of instrument models within the series family. A galvanically isolated Share-Bus interface in each instrument provides that all the instruments safely share the load conditions so that no instruments in the system are overloaded.

A capacity of 60kW in one enclosure enables engineers to reduce the power instruments required for a high-power system saving substantial capital costs and critical rack space. Also, eliminating a front panel display further saves capital equipment costs.

All series instruments function on the same firmware and have similar input and output characteristics. The common programming and user interface saves test development and set up time when creating test and control systems needing multiple power instrumentation.

The series instruments work effectively in either PC-controlled test systems or PLC-controlled industrial processes. Engineers can simply program the instruments utilising SCPI or ModBus programming modes. The series of instruments offer an extensive set of galvanically isolated interfaces. Standard interfaces include Ethernet, USB, and analog, while optional interfaces include CAN, CANopen, RS-232, Profibus, Profinet, ModBus, and EtherCat.